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參數(shù)資料
| 型號： | DS2740U |
| 元件分類： | 通用總線功能 |
| 英文描述： | High-Precision Coulomb Counter |
| 中文描述： | 高精度庫侖計 |
| 文件頁數(shù)： | 3/15頁 |
| 文件大?。?/td> | 248K |
| 代理商： | DS2740U |
DS2740
3 of 15
Table 2.
DETAILED PIN DESCRIPTION
PIN
SYMBOL
DESCRIPTION
OVD
1
1-Wire Bus Speed Control.
Input logic level selects the speed of the 1-
Wire bus. Logic 1 selects overdrive (OVD) and Logic 0 selects standard
timing (STD). On a multidrop bus, all devices must operate at same
speed.
Programmable I/O Pin.
Programmed as input or output through internal
registers. Open-drain output sufficient for LED or vibrator activation.
Current-Sense Resistor Input
Current-Sense Input.
Connected to SNS through a 10k
resistor to
allow filtering of the current waveform by an external capacitor.
Current-Sense Input.
Connected to V
SS
through a 10k
resistor to allow
filtering of the current waveform through an external capacitor.
Device Ground, Current-Sense Resistor Return.
Connect directly to
the negative terminal of the battery cell.
Data I/O Pin.
Operates bidirectionally with open-drain output driver.
Internal 1μA pulldown aids in sensing pack removal and sleep-mode
activation.
Power-Supply Input.
Connects to system voltage supply or positive
terminal of battery cell.
PIO
2
SNS
3
IS2
4
IS1
5
V
SS
6
DQ
7
V
DD
8
Figure 2.
APPLICATION EXAMPLE
DS2740
VDD
VSS
DQ
PIO
DATA
2.7V to 5.5V
System Supply
Battery Pack
Negative
Battery
Pack
Return
SNS
PIO
IS1
IS2
104
150
150
R
SNS
104
System
GND
OVD
*
*
* 5.6V zener recommended for ESD protection when DATA or PIO
contacts exposed, such as a removable battery pack application
150
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| DS2760E-025 | High Precision Li-Ion Battery Monitor |
| DS2760XA-025 | High Precision Li-Ion Battery Monitor |
| DS2760 | High Precision Li-Ion Battery Monitor |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2740U/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Precision Coulomb Counter |
| DS2740U/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Precision Coulomb Counter |
| DS2740U/T&R | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| DS2740U+ | 功能描述:電池管理 High-Precision Coulomb Counter RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| DS2740U+T&R | 制造商:Maxim Integrated Products 功能描述:PRECISION COULOMB COUNTER 8USOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC CURRENT GAUGE(15BIT) 8UMAX |
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